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Heart|Lab Grown|IGI

1.29ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG776639120

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG776639120

Diamond specifications and retailer prices

From €276 EUR
As of November 4, 2026
Save €1,094 EUR (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,370 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 1.29ct lab-grown heart diamond

This 1.29ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG776639120 or 776639120. Listed at 9 retailers as of November 4, 2026, with prices from €276 to €1,370, a €1,094 spread on the same certified stone. MOH London lists it at €1,370. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776639120
Dimensions6.94 × 7.66 × 4.41 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.94 mm7.66 mm1.29 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776639120
Side View
Table 60.0%Crown 33.8°Girdle: MED-STKPavilion 40°Culet: NoneDepth 57.6%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €1,370 EUR|Low: €276 EUR|High: €1,779 EUR|Avg: €777 EUR|-22.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 7€276 EUR
Retailer 3€320 EUR
Retailer 9€397 EUR
Retailer 2€528 EUR
Retailer 8€557 EUR
Retailer 6€564 EUR
Retailer 5€1,005 EUR
Retailer 4€1,101 EUR
MOH London€1,370 EUR

37 data points across 9 retailers

9 retailers€276 EUR to €1,370 EUR

A+
Cheapest Retailer
-
€276 EUR
A
Retailer 2
-
€320 EUR
View
A
Retailer 3
-
€397 EUR
View
Final sale: no returns
A
Retailer 4
-
€528 EUR
View
A
Retailer 5
-
€557 EUR
View
A
Retailer 6
-
€564 EUR
View
B+
Retailer 7
-
€1,005 EUR
View
B+
Retailer 8
-
€1,101 EUR
View
Most Expensive
B+
MOH London
LG776639120 · Nov 5
€1,370 EUR
£1,215 GBP
View
8 more retailers have this diamond
Prices start from €276 EURSave up to €1,094 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A+
1.29ct Heart
€276 EUR